Cita APA (7th ed.)

Leterman, E. G. (1974). Sales and sales management (1a. ed.). Alexander Hamilton Institute.

Cita Chicago (17th ed.)

Leterman, Elmer G. Sales and Sales Management. 1a. ed. Nueva York: Alexander Hamilton Institute, 1974.

Cita MLA (9th ed.)

Leterman, Elmer G. Sales and Sales Management. 1a. ed. Alexander Hamilton Institute, 1974.